Mixing fluid components

ABSTRACT

Portions of fluid components are mixed during transport through a tube by continuously disturbing their flow pattern in a controlled manner during their passage through the tube. The disturbance is created by providing the tube with a radially inward profile which in a preferred form is an internal screwthread of a thickness 0.25 to 0.75 times the internal diameter of the tube and having a pitch 0.75 to 1.5 times the internal diameter of the tube.

United States Patent [191 Klosse et al.

[5 MIXING FLUID COMPONENTS [76] Inventors: Jan Arie Klosse; Klaas Klosse, both of Hessenwcg 21 1, De Bilt, Netherlands {22] Filed: May 4, 1973 [21] Appl. No.: 357,269

[30] Foreign Application Priority Data May 4 1972 Netherlands 72060l6 [52] US. Cl 138/42; 23/230 R; 48/180 R; 138/44 [51] Int. Cl. B01F 05/00; BOlF 15/02 [58] Field Of Search 138/42, 44, 140144; 259/4; 48/180 R; 23/230 R, 259

[56] References Cited 1 UNITED STATES PATENTS 1.720.245 7/1929 Smith 138/42 X 2,146.823 2/1939 Karmazin 138/42 2254,5157 9/1941 Williams 138/42 X 145] Sept. 30, 1975 2.295.988 9/1942 Brace 138/42 X 2,901,327 8/1959 Thayer et al.. 29/230 R 2977,19) 3/1961 Quittner 23/230 R 3,501,273 3/1970 Agner 73/423 A 3,543.805 12/1970v Matthews et al. 138/141 3,647,187 3/1972 Dannewitz et al. 259/4 Primary E.\'aminerRichard C. Queisser Assistant E.raminerDaniel M. Yasich Attorney, Agent, or F irmCushman, Darby & Cushman [57] ABSTRACT Portions of fluid components are mixed during transport through a tube by continuously disturbing their flow pattern in a controlled manner during their passage through the tube; The disturbance is created by providing the tube with a radially inward profile which in a preferred form is an internal screw-thread of a thickness 0.25 to 0.-75.times the internal diameter of the tube and having a pitch 0.75 to 1.5 times the internal diameter of the tube.

4 Claims,5 0 Drawing Figures U.S. Patent Sept. 30,1975 Sheet 1 of 19 3,908,702

US. Patent Sept. 30,1975 Sheet20f 19 3,908,702

Fl6.6 m1. m2

MT 0,5 M MT 0,1M MT 0 H mm HM MT 5M MT 2" U.S. Patent Sept. 30,1975 Sheet30f 19 3,908,702

FIG. 5 FIG. 3

k k A:

MS 0,1M Ms 0M MS 2" MS 05!! US. Patent Sept. 30,1975 Sheet4 of 19 3,908,702

FIG- 12 US. Patent Sept. 50,1975 SheetS of 19 3,908,702

| FIG.1B FIG. 17

U.S. Patent Sept. 30,1975 Sheet6of 19 3,908,702

FIG. 2a-

FIG. 19 f MT MT US. Patent Sept. 30,1975 Sheet7 @11 3,908,702

FIG. 21 1 w 1.11.3 air I phusphclte -}-|i -molybda te I 11111111111 1: 1 I l1.1.22

to waste to 2 waste "l .JLEZ] y 3 I.

. FIG. 22 FIG. 23

' US. Patent Sept. 30,1975 Sheet9of19 3,908,702

FIG. 15 Y 1M3 cu cured so utlon 1-153 non-coloured I I solutlon L to waste Bfiflnm 15mm FIG. 27 FIG. 26

US. Patent Sept. 30,1975 Sheet 10 of 19 3,908,702

n u phosphate v L752 molyhdute l I vitamin c g z LJ to waste 660 nm 15 mm FIG. 30: FI 29 U.S. Patent Sept. 30,1975 Sheet 11 01 19 3,908 702 NM a:

US. Patent Sept. 30,1975 Sheet 12 of 19 3,908,702

FIG. 33 FIG. 3h

\P-w l Mood US. Patent Sept. 30,1975 Sheet 13 of 19 3,908,702

FIG. 3B

[Mx FIG 37 U.S. Patent Se )t.30,1975 Sheet 14 0519 3,908,702

FIG. 38

FIG. 39

U.S. Patent Sept. 30,1975 Sheet 15 of 19 3,908,702

FIG. L0 FIB. M

U.S. Patent Sept. 30,1975 Sheet 16 0f 19 3,908,702

FIG. 42 1 m M blood i cyanide L I /3 to waste UJ 1 3 I.

51.0 nm 15 mm FIG. L7 FIG. 48

Sept. 30,1975 Sheet 17 of 19 3,908,702

U.S. Patent US. Patent Sept. 30,1975 Sheet 18 of 19 3,908,702

c T 3 '5 g:

FIB. 1.5

U.S. Patepnt Sept. 30,1975 Sheet 19 of 19 3,908,702

49 IIIIIII UBE 

1. A mixing tube for use in transversely mixing fluid components together, said tube having an inner wall surface provided with a rounded male screw-thread configuration that provides a helical bore therethrough and having a height of about 0.5 times the diameter of the tube, and a pitch of from about 0.9 to about 1.1 times the diameter of the tube.
 2. A mixing tube as recited in claim 1 wherein angles formed by a profile of said male screw-thread configuration are uniformly rounded.
 3. A mixing tube as claimed in claim 1, wherein said tube is made at least in part of synthetic plastics material inert to materials to be processed.
 4. A mixing tube as claimed in claim 1, wherein said tube is made at least in part of polytetrafluoroethylene. 